From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 95705385840B; Wed, 2 Aug 2023 08:48:36 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 95705385840B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1690966116; bh=/xQsL9wrsJE8FpACZ6VjKIQDTq/T+hr18T0bcryT8gg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=qhIylzcDEgdaIqADA3HTktzlzNBKd0UZjWkwnrhLqfDqOjUMNqs+tMI883Gk3d4u0 An6qJ2VA+MaKIz1L011+DEXxXJD/id8PVn8dhFMVE+A/VZzOd0V5KWFK4umgSItszL kotN8JcNKl6sY4SrDtjyAasoi9lucBXLvWNOKfow= From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/106293] [13/14 Regression] 456.hmmer at -Ofast -march=native regressed by 19% on zen2 and zen3 in July 2022 Date: Wed, 02 Aug 2023 08:48:32 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 13.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.3 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106293 --- Comment #24 from Jan Hubicka --- g:2e93b92c1ec5fbbbe10765c6e059c3c90d564245 fixes the profile update after cancelled distribution. However it does not help hmmer since we actually vectorize that loop iterating 0 times. We need to figure out proper iterat= ion count for that and convince loop distribution and vectorizer to do nothing = on it.=